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(No Model.)

J. SMALLEY, 'Deod.

W. W. SMALLEY, administrator. I RIGTION BEARINGS.

MANUFACTURE OF ANTI-P No. 300,025.

Patented June 10, 1884.

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Warren STATES PATENT @rrice.

W'ILLIAM SMALLEY, OF BOUNDBROOK; NEW JERSEY, (ADMINISTRATOR OF JOHN SMALLEY, DEOEASED,) ASSIGNOR TO THE GRAPHITE LUBRI CATING COMPANY, OF JERSEY CITY, NEW JERSEY. I

MANUFACTURE OF ANT I-FRICTION BEARINGS.

SPECIFICATION forming part of Letters Patent No. 300,025, dated June 10, 1884-.

Application filed March 7, 1884. (No model.)

To all whom, it may concern.-

Be it known that JOHN SMALLEY, deceased, late a citizen of the United States, and a resident of Boundbrook, in the county of Somerset and State of New Jersey, didinvent certain new and useful Improvements in the Manu facture of Anti-Friction'Beai-i n gs, of which the following is a specification.

This invention relates to the manufacture of to that class of j carnal-bearings adapted for loose pulleys, car and vehicle axles, slides, and machinery in general, &c., in which an anti-friction composition is inserted in grooves, rccesses, or pockets in a metallic bearing, bush- I 5 ing, or sleeve; and the invention consists in a certain process and apparatus whereby to facilitate the introduction of the anti-friction compound into the pockets, grooves, or recesses.

In the drawings, Figure 1 is asectional view showing a bearing-box with an anti-friction composition. Fig. 2 is a sectional elevation of a machine for packing the composition in the box. Fig. 3 is a view illustrating the mode of boring out the box. Fig.4 is aperspective view showing the relative position of the box, holder, and'mandrel or plunger.

In Fig. 1 the bearing A is shown as consisting of two semi-tubular sections, a I), forming together a tube adapted to receive the shaft or journal, and grooved to receive the anti-friction composition 00. It will, however, be understood that the bearing or bushing may be of any of the various different forms 5 in which it is common to make them,- according to the purpose for which they are employed, and that the recesses, pockets, or receptacles' may be of any suitable shape. The compositions which are best adapted for such pur- 40 poses generally contain graphite, gums, or resins,which may or may not be softened by liquids or other means before their introduction in the receptacles. It has been found difficult in ordinary modes of manufacture to secure uniform results and the complete packing of the receptacles, owing to the liability of the material to become hard and stiff during the process of packing and before the packing is thoroughly completed. To avoid these difficulties,

if the composition is not of the proper consist 5o ency,ifnecessar'y,thecompositionissoftenedin any practicable and desirable way to the proper consistency. Then, first having heated the bearing or bushing in any ordinary heating oven or chamber, the composition is introduced and packed into the receptacle of the bearing or bushing so previously heated, and forced into the bearing or bushing by powerful pressure, maintaining, however, the bearing or bushing at auniform temperature while '60 the composition is being pressed into thesame in fact, keeping the bearing or bushing at or about the same temperature duringthe pressing operation as the hearing or bushing -was previously subjected to, thereby maintain- '65 ing sufficient softness in the composition while the pressing is being done to insure the complete filling of the receptacles, and preventing the hardening of the composition by contact with cold metal. As the metal bearing is already heated, in this manner the composition and the hearing or bushing will be strongly cemented together. Different appliances are employed in carrying out this mode of packing the receptacles, depending somewhat on the shape and character of thebearing; butthe general features of all are similar, and will be understood from a description of the device illus trated in the drawings, which is adapted for filling bearings for journals, such as is shown in Fig. 1. A tubular holder, B, is made either of one piece or of two or moresections secured together, and adapted to receive the bearing A and hold the parts thereof securely in their relative position. The holder, with the bear- 8 5 ing or bushing within the same, is introduced into the chamber 3 of a hollow casing, D, through which is maintained a current of steam or hot air or gas, whereby such a temperature is maintained as will prevent the go chilling of the bearing or bushing, which has been previously heated, as before described, the heat also maintaining the composition at a proper consistency. The composition is introduced into the end of the bearing by the 5 use of a scoop or spoon and around a slightlytapering plunger or mandrel, I, which is also heated while in use. This mandrel or plunger I by hand as the composition is introduced bethereby force the composition with a heavy pressure into the channels, grooves, or pockets while the bearing and composition are heated, as stated. After the material has been as firmly packed as is necessary, the presser device is raised and a second screw, L, turning in a cross-piece, m, is turned to lift a plunger or block, N, which is brought to bear on the lower ends of the plungerand bearing to force them out of the holder. The plunger and bearing are then removed from holder, the plunger withdrawn from the bearing, and the latter subjected to a baking process to dry or harden the composition, and a reamer, T, is then passed through the bearing, removing the surplus composition, and bringing the face of the same to a level with that of the metal.

Without confining the invention to the precise apparatus described, what is claimed is- 1. The improvement in the manufacture of anti-friction bearings consisting in filling the receptacles in the bearing-blocks with antifriction composition and packing the same therein under heat and pressure, substantially as described.

2. The mode described of making anti-friction bearings, the same consisting in heating the recessed or channeled bearing or bushing and introducing into the channels thereof an the channels or grooves, substantially as described.

4. The combination of the steam-heated casing D, plungers I and N, and screw J, ar-

ranged opposite a chamber in the casing, subu stantially as described.

5. The combination of the steam heated casing, screw J, and counter-screw L, substantially as and for the purpose set forth.

6; The-combination of the heater containing a chamber, y, compressing devices, and holder B, adapted to said chamber and to re ceive the bearing, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two sub scribing witnesses.

WILLIAM. TV. SMALLEY, Adnu'n'istmtor of John Smalley, deceased. Witnesses:

A. W. VAN XVINKLE, J r., SPENCER WEART. 

